实现网络拓扑图如图所示的ISISipv4集成网络环境,使用的是思科c7200镜像,GNS使用的是集成版(all in one),包括wireshark、Dynampis、Winpcap等环境软件,下载地址:http://download.csdn.net/detail/babybirdtofly/9359275 cisco c7200镜像文件下载地址:http://download.csdn.net/detail/babybirdtofly/9359343
安装晚之后新建工程按照如下方式配置:
R1#enable
R1#config ter
*Dec 15 14:49:01.403: %CLNS-3-BADPACKET:ISIS: L2 CSNP, packet length 0 less than header length 33 from ca01.1740.0008(FastEthernet0/0)
Enter configuration commands, one perline. End with CNTL/Z.
R1(config)#int f0/0
R1(config-if)#ip add 10.21.3.1255.255.255.0
R1(config-if)#ip router isis
R1(config-if)#no sh
R1(config-if)#router isis
R1(config-router)#net49.0111.0111.0111.0111.00
R1(config-router)#is-type level-2
R1#wr
R2#enable
R2#config ter
R2(config)#int f0/0
R2(config-if)#ip add 10.21.3.2255.255.255.0
R2(config-if)#ip router isis
R2(config-if)#no sh
R2(config)#int f0/1
R2(config-if)#ip add 10.21.5.2255.255.255.0
R2(config-if)#ip router isis
R2(config-if)#no sh
R2(config-if)#router isis
R2(config-router)#net 49.0222.0222.0222.0222.00
R2(config-router)#is-type level-2
R2#wr
R3#enable
R3#config ter
R3(config)#int f0/1
R3(config-if)#ip add 10.21.5.1 255.255.255.0
R3(config-if)#ip router isis
R3(config-if)#no sh
R3(config)#int f0/0
R3(config-if)#ip add 10.21.7.1255.255.255.0
R3(config-if)#ip router isis
R3(config-if)#no sh
R3(config-if)#router isis
R3(config-router)#net 49.0333.0333.0333.0333.00
R3(config-router)#is-type level-2
R3#wr
R4#enable
R4#config ter
R4(config)#int f0/0
R4(config-if)#ip add 10.21.7.2255.255.255.0
R4(config-if)#ip router isis
R4(config-if)#no sh
R4(config-if)#router isis
R4(config-router)#net 49.0444.0444.0444.0444.00
R4(config-router)#is-type level-2
R4#wr